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0878dde213
- Remove vendored copy
- Update Rails implementation to look for language definitions in node_modules
- Use webpack-based dynamic import for hljs core
- Use browser-native dynamic import for site-specific language bundle (and fallback to webpack-based dynamic import in tests)
- Simplify markdown implementation to allow all languages into the `lang-{blah}` className
- Now that all languages are passed through, resolve aliases at runtime to avoid the need for the pre-built `highlightjs-aliases` index
49 lines
1.2 KiB
Ruby
49 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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module HighlightJs
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HIGHLIGHTJS_DIR ||= "#{Rails.root}/app/assets/javascripts/node_modules/@highlightjs/cdn-assets/"
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def self.languages
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langs = Dir.glob(HIGHLIGHTJS_DIR + "languages/*.js").map { |path| File.basename(path)[0..-8] }
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langs.sort
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end
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def self.bundle(langs)
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lang_js =
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langs.filter_map do |lang|
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File.read(HIGHLIGHTJS_DIR + "languages/#{lang}.min.js")
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rescue Errno::ENOENT
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# no file, don't care
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end
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<<~JS
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export default function registerLanguages(hljs) {
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#{lang_js.join("\n")}
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}
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JS
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end
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def self.cache
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@lang_string_cache ||= {}
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end
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def self.version(lang_string)
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cache_info = cache[RailsMultisite::ConnectionManagement.current_db]
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return cache_info[:digest] if cache_info&.[](:lang_string) == lang_string
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cache_info = {
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lang_string: lang_string,
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digest: Digest::SHA1.hexdigest(bundle(lang_string.split("|"))),
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}
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cache[RailsMultisite::ConnectionManagement.current_db] = cache_info
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cache_info[:digest]
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end
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def self.path
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"/highlight-js/#{Discourse.current_hostname}/#{version SiteSetting.highlighted_languages}.js"
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end
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end
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